be ready for the worst with the twins, most likely one if not both wont make it, and they will pip at opposite endsSo I am Totally new to incubating. I have homemade styrafoam still-air bators that have been holding temp and humidity pretty steady. #1 has 3 muscovy eggs. (one is twice the size of the other 2 and is a double yolk) they are on day 21 and everything looks good inside. #2 has 7 chickens eggs and 2 mallard eggs, on day 9, also looking good inside.
you could also sponge them 1x per day it will help to draw out moisture, it will up the humidity in the bator initially but will clear out quicklySo, I checked my muscovy eggs again last night and it looks like their air sacs are too small!! Theyre on day 22 this evening. Would it help to drop the humidity to say, 35% until closer to lockdown?